Digital Commons Network^™

Response Of Strain To Amino Acid Supplementation And Lysine Requirements In Low Protein Layer Diets, John B. Carey

Electronic Theses and Dissertations

Two primary means of meeting amino acid requirements of laying hens, and nonruminants in general, are the use of diets high enough in protein to supply the needed amounts of all amino acids along with some excesses or by feeding low protein diets supplemented with minimum levels of essential amino acids needed for maximum performance. Proper supplementation of these low protein diets requires knowledge of the laying hen's requirement for amino acids and the interrelationships among amino acids, along with information about the influence of factors such as strain and management on these requirements . One purpose of the studies …

N-Acetyl-Dl-Tryptophan And Dl-Tryptophan Supplementation To Low Protein Starter Diets For Swine, Michael Walrod Cox

Electronic Theses and Dissertations

Supplementation of individual amino acids to low protein swine diets is of current interest in the swine industry due to attempts to reduce feed costs. Although cereal grains provide the majority of the total protein requirements for swine, the remainder must be supplied either from natural protein supplements or synthetic amino acids. Research has shown amino acid content and balance are of greater importance than total protein alone in meeting nutrient needs. Because of this, a great deal of effort has been directed toward determining single amino acid requirements of swine. Research of this nature is complicated by the varying …

Embryonic Screening And Isolation Of Pine Needle Abortive Factors, Keith A. Dehaan

Electronic Theses and Dissertations

Cattleman and veterinarian in the western states and Canada have noted the frequent occurrence of reproductive failure in cattle grazing ranges with tree stands of ponderosa pine (Pinus ponderosa). Consumption of the needles or buds from this tree have caused pregnant stock cows to abort or deliver weak calves. Retained fatal membranes are also frequently associated with pine needle abortion. Surveys conducted by the Black Hills Area Resource and Development Project in 1974 covering eight countries in western South Dakota and eastern Wyoming estimate that at least 600 calves were lost through pine needle abortion in a three year period …

The Effect Of Sodium Hexametaphosphate On Cottage Cheese Yields, Stephen T. Dybing

Electronic Theses and Dissertations

A major concern in the cottage cheese industry is the inefficient use of the available milk proteins. Currently, the methods of cottage cheese manufacture convert an average of only 74.9% of the milk proteins into cottage cheese, while the remainder are removed in the by-product whey (43, 56). As protein is the main determinant of both the yield and nutritional value of cottage cheese, if 25% of the available protein is lost to the whey, then potential cottage cheese yield and nutrition have been lost as well. The proteins lost in the whey are mainly -lactalbumin and β-lactoglobulin, which remain …

Drying Of Large Cylindrical Bales With A Solar Energy Intensifier-Thermal Energy Storage System, Jose L. Calle

Electronic Theses and Dissertations

Recent energy conditions have caused a reexamination of the use of solar energy for the drying of agricultural crops. As a result, because of the great importance in developing alternate energy sources as substitutes for conventional energy sources, research was conducted with the following objectives:

1. Test a multi-use solar energy intensifier-thermal energy storage system using various drying systems for a low temperature hay drying application.

2. Evaluate the thermal efficiency in terms of useful energy collected for a solar energy intensifier used to provide supplemental heat to dry hay, under actual climatic conditions.

A Nutrition Knowledge Survey Of Elementary Teachers In South Dakota, Karen E. Pearson

Electronic Theses and Dissertations

If the elementary teacher is to play a significant role in nutrition education, assessing their current status of nutrition knowledge is imperative. Such a data base can assist in determining the nature of educational efforts to adequately prepare elementary teachers for their role as nutrition educators. The primary objective of this research is to determine the present level of nutrition knowledge of elementary teachers in South Dakota. The findings of this study can assist state nutrition education program development by providing: (1) a representative picture of the nutrition knowledge of elementary teachers-presently in the field. (2) information regarding the major …

Catfish Cage Culture In A South Dakota Power Plant Cooling Reservoir, Gary P. Wheeler

Electronic Theses and Dissertations

Studies were conducted to evaluate the Big Stone Power Plant cooling reservoir in northeastern South Dakota as a site for cage culturing channel catfish (Ictalurus punctatus) for market and sport fishery stocking. Temperatures suitable for catfish culture (21-32 C) were present in the reservoir from mid-March through mid-September 1978 and from mid-October through 4 November 1978, the end of the study period. Mean values of chemical parameters analyzed included dissolved oxygen - 8.8 mg/1, total available chlorine- 0.13 mg/1, pH - 8.6, specific conductance - 2228 micromhos/cm, total hardness - 1128 mg/1 as CaC03, calcium hardness - 570 mg/1 as …

Hei-Gro Intravaginal Devices And Synovex-H Implants For Feedlot Heifers, James P. Goodman

Electronic Theses and Dissertations

Heifers gain at a slower rate, generally require more feed per unit gain and sell at a lower market price than steers. Due to the fact that heifer carcasses are commonly fatter and contain more waste trim than steers, the value of a heifer carcass is routinely less than that of a steer carcass of comparable yield and quality grade. In the past, the ways in which the livestock operator could increase his profit from feeding heifers were limited. Differential cost of feeder heifers versus steers and feed cost were the major criteria involved in his decision of whether or …

Habitat Preferences And Censusing Of Waterfowl Broods On Stock Ponds In South Central South Dakota, Mark A. Rumble

Electronic Theses and Dissertations

Waterfowl broods on stock ponds in south central South Dakota were surveyed in 1977 and 1978 to compare flush and observation techniques for censusing broods and to determine waterfowl brood habitat preferences. Results indicated that 72-8% of the broods present were censused by either technique alone. No differences were indicated between the 2 techniques when analyzed by species. For total brood counts, a significant (P<0.05) difference was indicated for 1 of the 4 sample periods. Differences were found between the 2 techniques for certain age-classes of species and age-classes overall. Visibility correction factors were calculated for each species based on the percentage of known broods censused by each technique. Brood habitat preferences were examined using multiple regression and discriminant analyses of 33 pond and upland variables. Ponds were selected in a limited size range (0.71-2, 70 ha) to reduce variation in numbers of broods per pond due to pond size. However, variables indicative of pond size were significantly and positively associated to brood use of ponds in 8 of 9 analyses. Potential brood escape cover such as Polygonum spp. and Eleocharis spp. were positively associated with mallard (Anas platyrhynchos), (A. strepera), northern shoveler (A. clypeata) and class 1 broods. Large differences in numbers of broods on study ponds between the 2 years were likely due to increased nesting cover provided by yellow sweet clover (Melilotus officinalis). Study ponds with higher pH and more submersed aquatic vegetation had more brood use.

Response Of Lactating Dairy Cows To Small And Large Amounts Of Dried Whey In The Concentrate Mixture, Eugene Walter Skyberg

Electronic Theses and Dissertations

Short-term (6 to 13 wk) experiments indicated that adding small amounts of dried whey to the concentrate mix fed to lactating dairy cows increase d milk fat percentage, but decreased milk production. In order to determine if the increased fat percentage was a positive response to dried whey in the ration, or an artifact of drying off the cows early, 5% dried whey product (DWP) was included in the concentrate mix fed to 10 Holstein cows. All cows started on the experiment in their 4th wk postpartum and continued for the duration of their lactation. The DWP replaced a portion …

Egg Hatching Patterns For Individual Western Corn Rootworm Females, Robert Shelton Hooten

Electronic Theses and Dissertations

The western corn rootworm, Diabrotica virgifera LeConte is amajor economic pest of corn in the north-central region of the United States. In 1973, yield reduction and control costs credited to the rootworm complex for a seven state area was estimated at 82 million dollars (Gerloff 1976). In 1975, South Dakota corn producers suffered a combined yield reduction and control cost of 27.5 million dollars(D. Walgenbach, South Dakota State University, personal communication). The majority of the damage to corn by the rootworm stems from larval feedng on the corn roots (Chiang 1973) Root pruning from larval feeding leads to an increase …

An Historical Analysis Of The University Of Mississippi's Television Station, Channel Twelve, And Its Existing Structure / By Patricia Davis Quinn, Patricia Davis Quinn

Electronic Theses and Dissertations

No abstract provided.

A Survey Of Differences Between Classical And Modern Thai Drama/ By Jiraporn Thongchua, Jiraporn Thongchua

Electronic Theses and Dissertations

No abstract provided.

The Teaching Of Coin Names And Country Of Origin To A Retarded Population : The Relationship Between Receptive Language And Productive Speech, David Downs Powers

Electronic Theses and Dissertations

No abstract provided.

The Effect Of Temperature And Adenosine 3',5'-Cyclic Monophosphate On Temperature-Dependent Characteristics Of Yersinia Enterocolitica / By Edward J. Truemper, Edward Joseph Truemper

Electronic Theses and Dissertations

No abstract provided.

An Analysis Of The Component Parts Of Three Gilbert And Sullivanoperettas / By Leah Rutledge, Leah Lisa Rutledge

Electronic Theses and Dissertations

No abstract provided.

Ceramic Analysis Of Materials From The Limeline Lake Site, Leflore County, Mississippi : A Test Case For Type-Variety In The Upper Yazoo River Basin Sub- Region, David T. Morgan

Electronic Theses and Dissertations

No abstract provided.

Home Box Office : An Analytical Overview Of Its Developments And Its Future, Judith Ann Herron

Electronic Theses and Dissertations

No abstract provided.

Chronic Effects Of Haloperidol And Clozapine Upon Response Rateand Duration In Rats, William Otto Faustman

Electronic Theses and Dissertations

No abstract provided.

Cuna Indian Adoptation : The Mola As A Vehicle Of Cultural Identity, Thomas Cleveland Carter Birchett

Electronic Theses and Dissertations

No abstract provided.

How Are You Going To Keep Them Down On The Farm? : A Legislative And Judicial Survey Of The Mississippi Enticementlaws, 1865-1917, Paul William Burch

Electronic Theses and Dissertations

No abstract provided.

Ceramic Analysis Of Materials From The Limeline Lake Site, Leflore County, Mississippi : A Test Case For Type-Variety In The Upper Yazoo River Basin Sub- Region / By David Turner Morgan, David T. Morgan

Electronic Theses and Dissertations

No abstract provided.

Unifying Ceramic Jewelry With Natural And Found Materials, Faye Kathryn Pfister

Electronic Theses and Dissertations

No abstract provided.

The Influence Of Relaxation Instructions On Smoking Behaviors And Urinary Ph During Stress, Steven Dudley Dobbs

Electronic Theses and Dissertations

No abstract provided.

Effect Of Probenecid On The Pharmacokinetics Of Dtic-4, Tai Wai David Chen

Electronic Theses and Dissertations

No abstract provided.

The Influence Of Social Setting And Drinking Cues : Discriminative Stimuli In The Social Drinking Situation / By Robert John Tomaszewski, Robert John Tomaszewski

Electronic Theses and Dissertations

No abstract provided.

The Effects Of Alcohol And The Expectancy Of Alcohol On Physiological And Subjective Responsiveness To Stress, Andrew Stephen Bradlyn

Electronic Theses and Dissertations

No abstract provided.

Jonah, An Illustrated Children's Book : A Comparative Study For Low And High Level Readability, Debra Gay Aven

Electronic Theses and Dissertations

No abstract provided.

Utilization Of Aspen Pellets As A Partial Roughage Replacement For Lactating Dairy Cows, Deborah Sharples Kipp

Electronic Theses and Dissertations

A complete switchback design using ten lactating cows divided into two groups of five was used to evaluate rations containing either (A) 30% dry matter from aspen pellets, 30% OM from corn silage, and 40% DM from a 28% crude protein· concentrate mix, or (B) 60% OM from corn silage and 40% OM from the concentrate mix, to determine if aspen could serve as a partial roughage for lactating dairy cows. All cows were at least 80 days into lactation at the start of the trial. Aspen contained on a DM basis, 1.9% crude protein, 80.3% neutral detergent fiber, 64.5% …

The Taxonomic Status Of Coyotes From Western South Dakota, Susan E. Lauzon

Electronic Theses and Dissertations

Expansion of the range of the coyote (Canis latrans) has been accompanied by numerous instances of hybridization with domestic dogs (C. familiaris). Recent studies have found a hybrid element in some wild coyote populations. The objectives of this study were to identify the taxonomic status of coyotes in western South Dakota, and to determine the degree of hybridization, if any, that is occurring between coyotes and domestic dogs in the state. Animals were collected from three areas in western South Dakota from September 1976 through January 1978. Skulls of 289 wild canids were cleaned; of these, 167 skulls from adults …